Bob I see your problem this way. I would replace the tie rod ends, silent bushings, and idler arm first and then see what it feels like. The idler arm rarely gets the attention it deserves and takes a lot of strain. This way you can leave the box in place and not take the apron off and all that it entails. Then if you are unhappy, rebuild the box. The reason is because you would need to replace that stuff anyway. The last box I took apart the bushing was not that bad, I wished later I would have left it.
steve
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